Xem mẫu

  1. Simpo PDF Merge and Split Unregistered Version - htt
  2. i Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com
  3. Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com This page intentionally left blank
  4. iii Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com A G uide for the Serious Searcher Randolph Hock Foreword by Gary Price Medford, New Jersey
  5. iv Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com The Extreme Searcher’s Internet Handbook: A Guide for the Serious Searcher Copyright © 2004 by Randolph E. Hock. All rights reserved. No part of this book may be reproduced in any form or by any elec- tronic or mechanical means including information storage and retrieval systems without permission in writing from the publisher, except by a reviewer, who may quote brief pas- sages in a review. Published by CyberAge Books, an imprint of Information Today, Inc., 143 Old Marlton Pike, Medford, New Jersey 08055. Publisher’s Note: The author and publisher have taken care in preparation of this book but make no expressed or implied warranty of any kind and assume no responsibil- ity for errors or omissions. No liability is assumed for incidental or consequential damages in connection with or arising out of the use of the information or programs con- tained herein. Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book and Information Today, Inc. was aware of a trademark claim, the designations have been printed with ini- tial capital letters. Library of Congress Cataloging-in-Publication Data Hock, Randolph, 1944- The extreme searcher’s Internet handbook : a guide for the serious searcher / Randolph Hock ; foreword by Gary Price. p. cm. Includes index. ISBN 0-910965-68-4 (pbk.) 1. Internet searching--Handbooks, manuals, etc. 2. Web search engines--Hand- books, manuals, etc. 3. Computer network resources--Handbooks, manuals, etc. 4. Web sites--Directories. 5. Internet addresses--Directories. I. Title. ZA4230.H63 2004 025.04--dc22 2003020596 Printed and bound in the United States of America. Publisher: Thomas H. Hogan, Sr. Editor-in-Chief: John B. Bryans Managing Editor: Deborah R. Poulson Copy Editor: Dorothy Pike Graphics Department Director: M. Heide Dengler Book Design: Erica Pannella Cover Design: Jacqueline Walter Indexer: Nancy Kopper
  6. Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com DEDICATION To Pamela, Matthew, Stephen, and Elizabeth v
  7. Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com This page intentionally left blank
  8. Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com TABLE OF CONTENTS CONTENTS List of Illustrations and Tables ................................................................ xi Foreword, by Gary Price............................................................................ xv Acknowledgments ..................................................................................... xvii Introduction .................................................................................................. xix About The Extreme Searcher’s Web Page .......................................... xxv Chapter 1 B asics for the Serious Searcher ............ 1 The Pieces of the Internet.................................................................................................... 1 A Very Brief History ................................................................................................................. 2 Searching the Internet: Web “Finding Tools”.............................................................. 6 General Strategies................................................................................................................. 10 A Basic Collection of Strategies .................................................................................... 12 Content on the Internet....................................................................................................... 14 Content—The Invisible Web .............................................................................................. 19 Copyright..................................................................................................................................... 22 Citing Internet Resources.................................................................................................. 23 Keeping Up-to-Date on Internet Resources and Tools..................................... 24 Chapter 2 General Web Directories and Portals .................................................................. 25 Strengths and Weaknesses of General Web Directories................................. 25 Selectivity of General Web Directories ...................................................................... 26 Classification of Sites in General Web Directories.............................................. 26 Searchability of General Web Directories ................................................................ 27 Size of Web Directory Databases ................................................................................. 27 Search Functionality in Web Directory Databases .............................................. 27 When to Use a General Web Directory...................................................................... 27 The Major General Web Directories ............................................................................ 28 Other General Directories ................................................................................................. 39 General Web Portals............................................................................................................. 40 Summary..................................................................................................................................... 45 vii
  9. viii T HE E XTREME S EARCHER ’ S I NTERNET H ANDBOOK Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Chapter 3 Specialized Directories ................................... 47 Strengths and Weaknesses vs. Other Kinds of Finding Tools....................... 47 How to Find Specialized Directories............................................................................ 47 What to Look for in Specialized Directories and How They Differ............. 50 Some Prominent Examples of Specialized Directories ..................................... 51 Chapter 4 Search Engines ........................................................ 61 How Search Engines Are Put Together..................................................................... 61 How Search Options Are Presented ........................................................................... 62 Typical Search Options ....................................................................................................... 63 Search Engine Overlap ....................................................................................................... 69 Results Pages .......................................................................................................................... 69 Profiles of Search Engines ............................................................................................... 70 AllTheWeb.................................................................................................................................. 70 AltaVista ...................................................................................................................................... 78 Google .......................................................................................................................................... 86 HotBot.......................................................................................................................................... 99 Teoma ........................................................................................................................................ 104 Other General Web Search Engines ........................................................................ 108 Specialty Search Engines ............................................................................................... 110 Metasearch Engines .......................................................................................................... 110 Keeping Up-to-Date on Web Search Engines .................................................... 111 Chapter 5 Groups and Mailing Lists ............................ 115 What They Are and Why They Are Useful..............................................................115 Groups ....................................................................................................................................... 116 Using Google to Find Groups and Messages....................................................... 119 Yahoo! Groups ....................................................................................................................... 123 Other Sources of Groups................................................................................................ 127 Mailing Lists............................................................................................................................ 128 One More Category—Online Instant Messaging................................................. 131 Some Netiquette Points Relating to Internet Groups and Mailing Lists ....................................................................................... 132 Chapter 6 An Internet Reference Shelf ................... 133 Thinking of the Internet as a Reference Collection ......................................... 133 Some Sites All Researchers Should Know About............................................. 134
  10. ix C ONTENTS Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Encyclopedias ....................................................................................................................... 135 Dictionaries............................................................................................................................. 137 Almanacs.................................................................................................................................. 138 Addresses and Phone Numbers ................................................................................. 139 Quotations............................................................................................................................... 140 Foreign Exchange Rates/Currency Converter ................................................... 142 Weather .................................................................................................................................... 143 Maps ........................................................................................................................................... 143 Gazetteer ................................................................................................................................. 143 ZIP Codes................................................................................................................................ 144 Stock Quotes......................................................................................................................... 144 Statistics................................................................................................................................... 144 Books ......................................................................................................................................... 146 Historical Documents ........................................................................................................ 151 Governments and Country Guides............................................................................. 151 U.S. Government.................................................................................................................. 152 U.S. State Information ...................................................................................................... 153 U.K. Government Information ....................................................................................... 153 Basic Resources for Company Information .......................................................... 153 Associations ........................................................................................................................... 156 Professional Directories .................................................................................................. 157 Literature Databases ........................................................................................................ 158 Colleges and Universities ................................................................................................ 159 Travel.......................................................................................................................................... 159 Film.............................................................................................................................................. 161 Reference Resource Guides ......................................................................................... 161 Chapter 7 Sights and Sounds: Finding Images, Audio, and Video .... 163 The Copyright Issue ........................................................................................................... 163 Images ....................................................................................................................................... 164 Audio and Video................................................................................................................... 175 Chapter 8 News Resources .................................................. 181 Types of News Sites on the Internet......................................................................... 181 Finding News—A General Strategy........................................................................... 182 News Resource Guides.................................................................................................... 183 Major News Networks and Newswires .................................................................... 185
  11. x T HE E XTREME S EARCHER ’ S I NTERNET H ANDBOOK Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Newspapers............................................................................................................................ 187 Radio and TV......................................................................................................................... 188 Aggregation Sites ............................................................................................................... 189 Specialized News Services ............................................................................................ 195 Alerting Services.................................................................................................................. 196 Chapter 9 Finding Products Online .............................. 199 Categories of Shopping Sites on the Internet..................................................... 199 Looking for Products—A General Strategy.......................................................... 200 Company Catalogs ............................................................................................................. 200 Shopping Malls ..................................................................................................................... 202 Price Comparison Sites ................................................................................................... 205 Product and Merchant Evaluations ........................................................................... 206 Buying Safely ........................................................................................................................ 208 Chapter 10 Becoming Part of the Internet: Publishing .................................................................. 211 What’s Needed ..................................................................................................................... 212 Sites to Help You Build Your Web Sites.................................................................. 217 Alternatives to Your Own Web Site............................................................................ 219 Conclusion ................................................................................................. 221 Glossary...................................................................................................... 223 URL List....................................................................................................... 231 About the Author ..................................................................................... 249 Index ............................................................................................................ 251
  12. Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com LIST I L L U S T R AT I O N S TA B L E S OF AND FIGURE 1.1 Yahoo!’s Main Directory Page................................................................... 8 FIGURE 1.2 Web Search Engine—AllTheWeb’s Advanced Search Page ........................................................................................................ 9 FIGURE 1.3 Ranked Output .............................................................................................. 12 FIGURE 1.4 Wayback Machine Search Result Showing Pages Available in the Internet Archive for whitehouse.gov ................ 19 FIGURE 2.1 Yahoo! Directory Page............................................................................... 29 FIGURE. 2.2 Yahoo! Search Results Page.................................................................. 32 FIGURE 2.3 Open Directory Directory Page............................................................ 33 FIGURE 2.4 Open Directory Search Results Page .............................................. 35 FIGURE 2.5 LookSmart Home Page............................................................................ 38 FIGURE 2.6 LookSmart Search Results Page ....................................................... 38 FIGURE 2.7 My Yahoo! Personalized Portal Page ................................................. 43 FIGURE 3.1 Resources Section of a Teoma Results Page (a Search on “Solar Energy”) ............................................................... 48 FIGURE 3.2 EEVL: The Internet Guide to Engineering, Mathematics, and Computing ............................................................. 55 FIGURE 3.3 New York Times Cybertimes—Business, Financial, and Investing Resources .................................................... 56 FIGURE 3.4 Kidon Media Link ......................................................................................... 60 FIGURE 4.1 Example of the Menu Approach to Qualifying a Search Term ............................................................................................... 63 FIGURE 4.2 Example of Using a Prefix to Qualify a Term................................ 63 FIGURE 4.3 Boolean Operators (Connectors)........................................................ 67 FIGURE 4.4 Menu Form of Boolean Choices .......................................................... 68 FIGURE 4.5 Example of Boolean Syntax ................................................................... 68 TABLE 4.1 Search Engines’ Boolean Syntax ........................................................ 69 xi FIGURE 4.6 AllTheWeb Home Page ............................................................................ 71
  13. xii T HE E XTREME S EARCHER ’ S I NTERNET H ANDBOOK Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com FIGURE 4.7 AllTheWeb Advanced Search Page................................................... 72 FIGURE 4.8 AllTheWeb Results Page ......................................................................... 76 FIGURE 4.9 AltaVista Home Page ................................................................................ 79 FIGURE 4.10 AltaVista’s Advanced Search Page.................................................... 81 FIGURE 4.11 Google’s Home Page ................................................................................. 87 FIGURE 4.12 Google’s Advanced Search Page........................................................ 89 FIGURE 4.13 Google Results Page ................................................................................. 94 FIGURE 4.14 Google Toolbar .............................................................................................. 98 FIGURE 4.15 HotBot Home Page .................................................................................... 99 FIGURE 4.16 HotBot’s Advanced Page ..................................................................... 102 FIGURE 4.17 Teoma’s Home Page............................................................................... 104 FIGURE 4.18 Teoma’s Advanced Page....................................................................... 106 TABLE 4.2 Search Engines Features Chart........................................................ 112 FIGURE 5.1 Google Groups: Browsing Within a Hierarchy........................... 120 FIGURE 5.2 Google’s Advanced Groups Search Page.................................... 121 FIGURE 5.3 Google Groups: Message Thread..................................................... 122 FIGURE 5.4 Yahoo! Group Description Page ........................................................ 125 FIGURE 5.5 List of Yahoo! Group Messages......................................................... 126 FIGURE 5.6 Topica List Description .......................................................................... 131 FIGURE 6.1 Article from Encyclopedia.com.......................................................... 136 FIGURE 6.2 Definition from Merriam-Webster Online..................................... 138 FIGURE 6.3 Bartleby.com ................................................................................................ 142 FIGURE 6.4 USA Statistics in Brief ........................................................................... 147 FIGURE 6.5 The Online Books Page......................................................................... 150 FIGURE 6.6 Hoovers .......................................................................................................... 156 FIGURE 7.1 Google’s Advanced Image Search Page ...................................... 169 FIGURE 7.2 AltaVista’s Image Search Page ......................................................... 171 FIGURE 7.3 AllTheWeb’s Advanced Pictures Search Page......................... 172 FIGURE 8.1 Kidon Media-Link...................................................................................... 184 FIGURE 8.2 BBC News Advanced Search Page................................................ 186 TABLE 8.1 Search Engine News Search Features......................................... 190 FIGURE 8.3 World News Network .............................................................................. 191 FIGURE 8.4 AllTheWeb Advanced News Search Page .................................. 192 FIGURE 8.5 AltaVista News Search .......................................................................... 193
  14. xiii L IST OF I LLUSTRATIONS AND TABLES Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com FIGURE 8.6 Google News Search .............................................................................. 194 FIGURE 8.7 NewsAlert Topic Construction........................................................... 197 FIGURE 9.1 ThomasRegister Category Listing................................................... 201 FIGURE 9.2 Yahoo! Shopping Page ........................................................................... 203 FIGURE 9.3 Froogle Results Page............................................................................. 205 FIGURE 10.1 Dreamweaver............................................................................................... 214 FIGURE 10.2 Example of a Geocities Template..................................................... 217 FIGURE 10.3 Webmonkey Beginners Page. ............................................................ 218
  15. Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com This page intentionally left blank
  16. Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com FOREWORD Many people believe that searching the Web is as easy as typing a few terms into a box and clicking the search button. Like magic, in a matter of seconds, links to precise, accurate, and current answers will appear. Unfortunately, this is not the case. The term “search” is very broad and means different things to different people. For some people it means using an engine like AllTheWeb or Teoma. For others it includes the use of a Web directory focused on a specific topic. For some, search means utilizing not only Web engines but also specialized databases that may contain geographic data, full-text articles, or government information. Another major issue for the searcher is where to begin. Questions revolve around what each resource does and does not offer. Which is most likely to hold the information I need? How often is the database updated? Can I limit my search to a particular format? Can I change the number of results I see on a results page? What advanced features are available? Knowing where to find this information and then how to apply it can help the Web searcher avoid coming face-to-face with massive amounts of aggravation and wasted time. Complicating the situation is that as already large Web engines, directo- ries, and databases get larger, it is becoming much more challenging to find what you’re looking for. While the retrieval technology is getting better, to find information effectively your search skills must not only be up-to-date, they must be constantly improving. The good news is that with just a little education and guidance, searching, retrieving, and accessing material on the Web can become easier. Having these skills will make you a better student. Knowing how to save search time will make you a more valuable employee. These are a few of the reasons why the knowledge, experience, and opin- ions of Internet search expert Ran Hock are so valuable. This latest book of xv
  17. xvi T HE E XTREME S EARCHER ’ S I NTERNET H ANDBOOK Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Ran’s, The Extreme Searcher’s Internet Handbook, is a resource you’ll find yourself referring to on a regular basis. These days, people tend to rely on a single search tool for all of their Internet research needs. As Ran vividly illustrates, effective searching requires that you know how to use a number of tools. He does a great job of covering the wide range of resources available to the Web searcher. From news engines to quotation databases, specialized directories to online refer- ence works, groups and mailing lists to image and audio finding tools, com- parison shopping sites, portals, and more, Ran provides not only the addresses of these sources but the reasons you might want to use them. He also addresses copyright and citation issues, among other important topics for Web searchers. Ran Hock has done more than write a book. He’s created a key resource for both those who need a bit of education in the area of Web research and for experienced searchers who need to verify what a specific search tool offers. I don’t doubt that in a very short period of time your copy will be dog- eared, full of notes, draped with Post-Its, and nothing short of worn out. Maybe you should buy two copies … —Gary Price November, 2003 Gary Price is a reference librarian and information consultant based in suburban Washington, DC. He is co-author of The Invisible Web: Uncovering Information Sources Search Engines Can’t See and edits ResourceShelf (http://www.resourceshelf.com), a daily update on Web search and other online retrieval news.
  18. Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com ACKNOWLEDGMENTS First, the great group of people at Information Today, Inc. are due my sin- cere thanks for their hard work, creativity, and enthusiasm in getting this book to press and into readers’ hands. In particular, I am grateful to Tom Hogan, Sr. for the existence of Information Today, Inc., to John Bryans for his encouragement and support and for agreeing to do this book, to Deborah Poulson for shepherding it through the process, to Dorothy Pike for a great job of copyediting, to Heide Dengler for her role on the graphics side of things, and to Erica Panella, Kara Jalkowski, and Jacqueline Walter, the cre- ative artists and designers who gave the book its unique look. Special thanks to Lisa Wrigley not just for her tireless efforts in promoting my books, but also for her unabated enthusiasm for them. Once again, my appreciation to my friends in the New England Online Users Group for having suggested the phrase “Extreme Searcher” to me sev- eral years ago. Thanks also to the readers of my earlier books for their support, encour- agement, and comments. I also offer my gratitude to the many hundreds of students in the courses I teach, for their insights and comments on using the Internet effectively and on what excites them most about the wonders of the Internet. xvii
  19. Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com This page intentionally left blank
  20. Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com INTRODUCTION Several years ago, Thomas’s English Muffins had an ad that proclaimed that the tastiness of their muffins was due to the presence of myriad “nooks and crannies.” The same may be said of the Internet. It is in the Internet’s nooks and crannies that the true “tastiness” often lies. Almost every Internet user has used Google and probably Yahoo!, and any group of experienced searchers could probably come up with a dozen or so sites that every one of them had used. But even for experienced searchers, time and task constraints have meant that some nooks and crannies have not been explored and exploited. These unexplored areas may be broad Internet resources such as newsgroups, specific types of resources such as multimedia, or the nooks and crannies of a specific site—even Google. This book is intended to be an aid in that exploration. Back on the culinary scene, I am told that some people don’t take the few extra seconds to split their English muffins with a fork, but, driven by their busy schedules, just grab a knife and slice them. This book is written for those seeking to savor the extra tastiness from the Internet. It will hopefully tempt you to discover what the nooks and crannies have to offer, and how to split the Internet muffin with a fork almost as quickly as you can slice it with a knife. Less metaphorically, this book is written as a guide for researchers, writers, librarians, teachers, and others, covering what serious users need to know to fully take advantage of Internet tools and resources. It focuses on what the serious searcher “has to know” but, for flavor, a dash of the “nice-to-know” is occasionally thrown in. It assumes that you already know the basics, that you are signed up for and frequently use the Internet, and that you know how to use your browser. For those who are not experienced online searchers, my aim is to provide a lot that is new and useful. For those of you with more experience, I hope to reinforce what you know while introducing some new perspectives and new content. xix
nguon tai.lieu . vn